#11 - Upsc Puzzle Question

The question that follows came in the UPSC final exam that was held in December 2013. Only one examinee i.e. Gaurav Agarwal was able to solve it. Can you solve it?

? + ? + ? + ? + ? = 30

You have to fill numbers in place of question marks. The numbers that you can use are 1, 3, 5, 7, 9, 11, 13 and 15. You can repeat the numbers if you like.

The answer is
(15 - 9) + (13 - 7) + (7 - 1) + (9 - 1) + (13 - 9)

If you calculate it, you will get
6 + 6 + 6 + 8 + 4 = 30

#12 - Civil Service Tricky Interview Question

A fresher was sitting in an interview. The interviewer said, "This is the last question of your interview. Tell me the accurate position of the center of this table where your resume is kept."

How can he answer this question? What will you have answered to such a question?

Civil Service Tricky Interview Question

Put your finger confidently at a supposedly center point of the table and tell him that this is the exact center point.

The interviewer will ask, “How do you know this is the exact center?"

You can revert back that your last question was the previous question and thus you are not liable to answer further.

This is just a matter of being quick witted. The cleverer you are, the better the impression will be.

#13 - Upsc Picture Series Puzzle

Can you solve below logical number series puzzle.

Upsc Picture Series Puzzle

11.3135 + 9.3115+ 9.375

#14 - 3 Cup Classic Lateral Thinking Puzzle

Below picture shows three empty cups. You need to put in your lateral thinking cap and place ten sugar cubes in three cups such that every cup contains an odd number of sugar cubes.
Can you do it?

3 Cup Classic Lateral Thinking Puzzle

Pour three sugar cubes on cup1 and cup3 and 4 sugar cubes on cup-2
Now,
Cup-1 got three sugar cubes.
Cup-3 got three sugar cubes.
Cup-2 got three seven cubes (3 of cup-1 and 4 of its own)

#15 - IQ Picture Riddle

By adding three letters, can you move image from

to
IQ Picture Riddle

Image
http://www.briddles.com/images/riddles/IQ-TEST-BRIDDLES-.png
can be changed to
http://www.briddles.com/images/riddles/IQ-TEST-BRIDDLES-ANS.png
By adding 3 letters "Ans".

#16 - IAS Interview RIDDLE

How can you drop a raw egg from a height onto a concrete floor without cracking it?

Concrete floors are very hard to crack

#17 - Phone Riddle

If you multiply all the numbers on the telephone, what is the answer?

Phone Riddle

0--Remember their is a zero!

#18 - Teacher Riddle

After teaching his class all about roman numerals (X = 10, IX=9 and so on) the teacher asked his class to draw a single continuous line and turn IX into 6. The only stipulation the teacher made was that the pen could not be lifted from the paper until the line was complete.

Teacher Riddle

Draw an S in front of the IX and it spells SIX. No one said the line had to be straight.

#19 - Ramanujan Magic Number Riddle

Ramanujan discovered 1729 as a magic number.

Why 1729 is a magic number ?

Ramanujan Magic Number Riddle

They can be expressed as the sum of the cubes of two different sets of numbers.

10^3 + 9^3 = 1729
and
12^3 + 1^3 = 1729

#20 - Hard Calendar Puzzle

A contest is held on international level in December 2013. The finale of it is between an American and a British kid. Only name and date have to be mentioned on the paper for checking purpose. But when the checkers check it, they find out that both of them have same names. The papers cannot be told apart in any manner now.

What is the date of competition ?

Hard Calendar Puzzle

The date is 12 December 2013. For any other date, the checkers would have been able to identify the papers. Why? Because the British people write dates in Day/Month/Year Format and the American people write date in Month/Day/Year format. On 12 December, the date and month will be the same and thus there is no way to distinguish when the names are same as well.